| From: | Stephen Frost <sfrost(at)snowman(dot)net> |
|---|---|
| To: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
| Cc: | KaiGai Kohei <kaigai(at)ak(dot)jp(dot)nec(dot)com>, pgsql-hackers(at)postgresql(dot)org, Markus Wanner <markus(at)bluegap(dot)ch>, Alvaro Herrera <alvherre(at)commandprompt(dot)com> |
| Subject: | Re: Column-Level Privileges |
| Date: | 2009-01-21 03:45:16 |
| Message-ID: | 20090121034516.GD32428@tamriel.snowman.net |
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| Lists: | pgsql-hackers |
* Tom Lane (tgl(at)sss(dot)pgh(dot)pa(dot)us) wrote:
> On looking closer, though, it's *still* messy and unobvious :-(.
> There is no single place in the parser where we have the complete
> multi-level query tree available in a convenient form for this sort of
> postprocessing.
That's unfortunate. :/
> I've thought of a less painful variant of my third option: instead of
> making a permanent addition to RangeTblEntry, we can have a transient
> data structure attached to ParseState that lets us find the JoinExpr
> nodes for already-parsed joins. I'm going to try that next.
Sounds reasonable. I'd be happy to help if there's anything useful I
can do at this point.
Thanks,
Stephen
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